Hisham A, Jayakumar G, Bai Ajitha, Fujimoto Y
Department of Chemistry, College of Science, Sultan Qaboos University, P.O. Box-36, Al-khode-123, Oman.
Nat Prod Res. 2004 Aug;18(4):329-34. doi: 10.1080/14786410310001626820.
An investigation of the leaves of Dysoxylum beddomei has yielded a novel triterpene, named beddomeilactone, together with six known triterpenoids: 3-oxotirucalla-7,24-dien-23-ol, dipterocarpol, niloticin, melianone, melianodiol and 24-epi-melianodiol. The structure and stereochemistry of the new compound were determined on the basis of mass, 1D and 2D NMR spectroscopies including NOE difference and spin-spin decoupling studies.
对贝德密氏椤叶的研究得到了一种名为贝德密内酯的新型三萜类化合物，以及六种已知的三萜类化合物：3-氧代-7,24-二烯-23-醇、二萜醇、尼罗替林、美里安酮、美里安二醇和24-表美里安二醇。基于质谱、一维和二维核磁共振光谱（包括NOE差异和自旋-自旋去耦研究）确定了新化合物的结构和立体化学。
